Safety

What the app may terminate, change and undo.

Terminating games

• Shutdown, Kill and Restart ask for confirmation before terminating anything. Tick Don't ask again to stop the prompt; turn it back on under View > Confirm before terminating a game. F2 twice (while a game runs) asks for the second press instead.
• Termination is scoped to the session: the game you launched (and everything it started), the selected target by full path, and loader processes (for example TeknoParrot or Dolphin) that were started after your launch. A loader or emulator you started yourself beforehand is left alone.
• Shell and system processes (explorer.exe, cmd.exe, browsers, ...) are never terminated.

Changes and how to undo them

What	Undo
Window styles and positions of the game	Reset All, or the Windowed button for borderless changes.
The game's config files (Game config tab)	A copy of each is kept as <file>.wm-original before the first change; Restore originals puts the game's values back.
Resolution, orientation, display arrangement (Display tab)	Undone after 15 seconds unless you confirm it.
A game's display settings	Undone when the game closes, or at the next start if the app crashed.
HelixSR in a game	Remove puts the game's own DLL back.
Graphics card per game, power plan, power mode	Change them back on the GPU & Power tab (they are Windows' own settings).

Online games

Moving and resizing windows is what Windows itself does. The downscaled view only reads the window's picture and sends mouse messages to it. A replaced DLL (HelixSR) may not be accepted by anti-cheat: use it at your own risk.